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Old 11-23-2017, 08:29 AM   #14
NullNix
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Posts: 929
Karma: 15576314
Join Date: Jan 2013
Location: Ely, Cambridgeshire, UK
Device: Kindle Oasis 3, Kindle Oasis 1
Quote:
Originally Posted by pdurrant View Post
The only problem I se here is that some service providers block port 25. But I think it's an interesting discovery.

If your ISP does allow outgoing port 25 connections, it seems to be a much better way to configure calibre.
Amazon often discriminates against port 25 connections, not only from domestic IP space but from completely random places (it doesn't seem to be using a normal blacklist, since my IP space is unblacklisted non-domestic space but often affected anyway): affected connections can be very slow or simply rejected out of hand. Routing things via your gmail account via -r smtp.gmail.com -e TLS -p 587 -u your.email@gmail.com --password ... fixes this completely.
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